A 19-year-old entrepreneur from Montreal is taking on tech juggernauts Samsung and Sony by trying to launch a smartwatch.

Like many startups, Neptune Computer Inc., has turned to an online crowdfunding platform to raise funding for a full launch of its product. Simon Tian’s vision for a better smartwatch quickly won over the community at Kickstarter. He hit his target of $100,000 in slightly more than 24 hours and passed $200,000 on Nov. 21 with 30 more days to continue to raise funds.

He had the idea for his smartwatch, called the Neptune Pine, last year and visited factories in China to investigate what he could have built.

“I learned that in 2013 it’s actually possible for small startup companies like us to develop products as competitive as what the big guys are coming up with, because material costs have been going down for years and they’ve been made accessible — all the different chips and components — not to only large orders but to small orders as well,” Mr. Tian said.

“That’s what’s really permitting us to develop this product.”

The first thing that stands out about the Neptune Pine is its 2.4-inch screen, which he admits looks large on a wrist. “Obviously the initial reaction will be, ‘Oh, it’s big for a watch!’ but we think a paradigm shift is going to be required in the future.”

He decided a big screen was crucial to make a truly useful smart watch that could browse the web, launch Google Android apps and make calls. The watch also takes its own SIM card so it’s not dependent on a smartphone for a wireless connection. It can also connect to WiFi networks.

Handout/The Canadian Press

“Right now the biggest issue with smartwatches is screen size, the form factor is limiting it from replacing a fully functional smartphone,” Mr. Tian said.

“[Current smartwatches] are all very good at specific things, like peering with your phone for notifications or tracking fitness data, but there’s no one single smart watch that can sort of do it all.”

He contends the future of smartwatches lies in using flexible-screen technology, which many companies are working to commercialize. “It would basically circle around the wrist and when you remove it you would have a three- or four-inch screen that would be entirely large enough for smartphone functionability,” Mr. Tian said.

He plans to produce at least 2,500 watches by January. A model with 16 gigabytes of storage will sell for $335, an additional $60 will buy double the storage.

Mr. Tian is following the lead of another young Canadian entrepreneur who found success in wearable technology. Last year, 26-year-old Eric Migicovsky raised more than $10-million on Kickstarter for his Pebble watch, which connects wirelessly to a smartphone to display message notifications and launch apps.